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Globe Puzzle
A puzzle globe (also called ''jigsaw globe'', ''globe puzzle'', ''puzzle ball'', ''puzzle sphere'' or ''spherical puzzle'') is a spherical assembly of puzzle pieces that, when put together, form a complete sphere or globe. Puzzle globes will generally have a one-piece spherical substrate that supports the puzzle pieces as they are laid in place. In some puzzle globes the substrate is steel and the puzzle pieces are magnetic, the magnetic attraction keeping pieces on the lower portion of the sphere from falling off. Like a two-dimensional jigsaw puzzle, a globe puzzle is often made of cardboard and the assembled pieces form a single layer. Most globe puzzles have designs representing spherical shapes such as the Earth, the Moon, or historical globes of the Earth. The logo of Wikipedia is a puzzle globe depicting glyphs from many different writing systems. A jigsaw puzzle globe from the 1870s is in the collection of the Whipple Museum of the History of Science, and is a copy of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphere
A sphere () is a Geometry, geometrical object that is a solid geometry, three-dimensional analogue to a two-dimensional circle. A sphere is the Locus (mathematics), set of points that are all at the same distance from a given point in three-dimensional space.. That given point is the centre (geometry), centre of the sphere, and is the sphere's radius. The earliest known mentions of spheres appear in the work of the Greek mathematics, ancient Greek mathematicians. The sphere is a fundamental object in many fields of mathematics. Spheres and nearly-spherical shapes also appear in nature and industry. Bubble (physics), Bubbles such as soap bubbles take a spherical shape in equilibrium. spherical Earth, The Earth is often approximated as a sphere in geography, and the celestial sphere is an important concept in astronomy. Manufactured items including pressure vessels and most curved mirrors and lenses are based on spheres. Spheres rolling, roll smoothly in any direction, so mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jigsaw Puzzle
A jigsaw puzzle is a tiling puzzle that requires the assembly of often irregularly shaped interlocking and mosaiced pieces, each of which typically has a portion of a picture. When assembled, the puzzle pieces produce a complete picture. In the 18th century, jigsaw puzzles were created by painting a picture on a flat, rectangular piece of wood, then cutting it into small pieces. Despite the name, a jigsaw was never used. John Spilsbury, a London cartographer and engraver, is credited with commercialising jigsaw puzzles around 1760. His design took world maps, and cut out the individual nations in order for them to be reassembled by students as a geographical teaching aid. They have since come to be made primarily of interlocking cardboard pieces, incorporating a variety of images & designs. Typical images on jigsaw puzzles include scenes from nature, buildings, and repetitive designs—castles and mountains are common, as well as other traditional subjects. However, any pictu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Globe
A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but unlike maps, they do not distort the surface that they portray except to scale it down. A model globe of Earth is called a terrestrial globe. A model globe of the celestial sphere is called a ''celestial globe''. A globe shows details of its subject. A terrestrial globe shows landmasses and water bodies. It might show nations and major cities and the network of latitude and longitude lines. Some have raised relief to show mountains and other large landforms. A celestial globe shows notable stars, and may also show positions of other prominent astronomical objects. Typically, it will also divide the celestial sphere into constellations. The word ''globe'' comes from the Latin word ''globus'', meaning "sphere". Globes have a long history. The first known mention of a globe is from Strabo, describing the Globe of Crates from about 150&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substrate (materials Science)
Substrate is a term used in materials science and engineering to describe the base material on which processing is conducted. This surface could be used to produce new film or layers of material such as deposited coatings. It could be the base to which paint, adhesives, or adhesive tape is bonded. A typical substrate might be rigid such as metal, concrete, or glass, onto which a coating might be deposited. Flexible substrates are also used. With all coating processes, the condition of the surface of the substrate can strongly affect the bond of subsequent layers. This can include cleanliness, smoothness, surface energy, moisture, etc. Some substrates are anisotropic with surface properties being different depending on the direction: examples include wood and paper products. Coatings Coating can be by a variety of processes: * Adhesives and Adhesive tapes * Coating and printing processes * Chemical vapor deposition and physical vapor deposition * Conversion coating :* A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnet
A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets. A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include the elements iron, nickel and cobalt and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone. Although ferromagnetic (and ferrimagnetic) materials are the only ones attracted to a magnet strongly enough to be commonly considered magnetic, all other substances respond weakly to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes the magnetosphere of the Earth, deflecting destructive solar winds. The atmosphere of the Earth consists mostly of nitrogen and oxygen. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the energy from the Sun close to the surface. Water vapor is widely present in the atmosphere and forms clouds that cover most of the planet. More solar e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synodic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logo Of Wikipedia
The logo of Wikipedia, a free online encyclopedia, is an unfinished globe constructed from jigsaw pieces—some pieces are missing at the top—each inscribed with a glyph from a different writing system. As displayed on the web pages of the English-language edition of the project, there is the wordmark "WA" under the globe, and below that, the text "The Free Encyclopedia" in the free open-source Linux Libertine font. Puzzle-globe design Each piece bears a glyph (a letter or other character), or glyphs, symbolizing the multilingualism of Wikipedia. As with the Latin letter "W", these glyphs are in most cases the first glyph or glyphs of the name "Wikipedia" rendered in that language. They are as follows: *At left, from the top down, are Armenian ''v'', Cambodian ''vĕ'' (lying on its side), Bengali ''U'', Devanagari वि ''vi'', and Georgian ''v''. *In the middle-left column is Greek ''ō'', and below that are Chinese ''wéi'', Kannada ''vi'', and (barely visible at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whipple Museum Of The History Of Science
Whipple may refer to: People *Whipple (surname) (including a list of people with the surname) *Whip Jones (1909–2001), American ski industry pioneer, founder, developer and original operator of the Aspen Highlands ski area in Aspen, Colorado * Whipple Van Buren Phillips (1833–1904), American businessman, grandfather of H. P. Lovecraft, whom he raised Fictional characters *Mr. Whipple, in American television ads for Charmin toilet paper * Whipple Jones (''The Bold and the Beautiful''), in the American soap opera ''The Bold and the Beautiful'' Places in the United States *Whipple, Ohio, an unincorporated community * Whipple, West Virginia, an unincorporated community * Whipple Lakes, Crow Wing County, Minnesota * Whipple Lake, Clearwater County, Minnesota *Whipple Mountains, a mountain range in southeastern California * Whipple Run, a stream in Ohio In the military *, three U.S. Navy ships named after Abraham Whipple *Fort Whipple, Arizona, a fort established in 1863 in Arizon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrisphere
''Tetrisphere'' is a Puzzle video game, puzzle video game developed by H2O Entertainment and published by Nintendo for the Nintendo 64. It was released in North America on August 11, 1997, and in PAL regions in February 1998. The game, originally named ''Phear,'' was slated for release on the Atari Jaguar in early 1995, but was reworked into a Tetris game for the N64 after Nintendo obtained its publishing rights. ''Tetrisphere'' is a variant on ''Tetris'' in which various shapes are shifted across a wraparound (video games), wrapped three-dimensional space, three-dimensional grid resembling a sphere, and then destroyed. The objective of the game changes depending on the mode but generally consists of removing layers of shapes to reach the playing field's core. Despite very little domestic advertising, ''Tetrisphere'' enjoyed moderately good sales and a mostly favorable critical reception. Reviewers praised the game's originality and the musical score composed by Neil Voss. Gamep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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